1. In 1845, Wisconsin Territory Governor Henry Dodge signed a bill establishing Madison as the territory's capital city. The decision was controversial, as many people believed that the capital should be located closer to the Wisconsin River. However, Dodge argued that Madison was strategically located between the Mississippi and Lake Michigan, making it an ideal location for a capital.

2. On April 2, 1861, Wisconsin Governor Alexander W. Randall issued a proclamation calling for the state to raise a regiment of soldiers to fight in the American Civil War. The 1st Wisconsin Infantry would go on to serve in some of the war's most famous battles, including Bull Run, Antietam, and Gettysburg.

3. Wisconsin native Edward A. Doisy was awarded the Nobel Prize in Physiology or Medicine on April 2, 1943. Doisy, along with his colleague Henrik Dam, discovered vitamin K, which is essential for blood clotting. Doisy was born in Hume, Illinois, but grew up in Wisconsin and attended Marquette University.

4. On April 2, 1979, Wisconsin Governor Lee Dreyfus signed a bill establishing the Wisconsin Public Radio network. The network, which is now known as Wisconsin Public Radio, provides news, cultural programming, and educational content to listeners throughout the state.

5. On April 2, 2001, the Milwaukee Brewers played their first game at Miller Park, their new stadium. The Brewers defeated the Cincinnati Reds 5-4 in 10 innings in front of a sellout crowd of 42,024. The stadium features a retractable roof and a fan-shaped seating bowl, and has become a popular destination for baseball fans in Wisconsin and beyond.